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| Question for those running Holley 3739 TBI (Page 2/2) |
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ag9123
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SEP 20, 08:32 PM
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***Bump*** ------------------
1984 Indy Fiero
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Dennis LaGrua
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SEP 20, 09:02 PM
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Using your scan tool; Follow the O2 sensor voltages while driving. They should be .5V or lower under normal driving conditions and near .9V at WOT. If you do not want to invest in a scan tool buy a low cost air fuel gauge. That will give you some idea (although rough) under what conditions your engine is running rich.
Bad mileage can be caused by many factors; timing, manifold leak, weak coil, bad plug wire, defective ETC (my guess) , leaky injector, and high fuel pressure. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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fierosound
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SEP 20, 11:46 PM
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